mirror of https://github.com/tc39/test262.git
55 lines
1.4 KiB
Plaintext
55 lines
1.4 KiB
Plaintext
// Copyright 2017 Tooru Fujisawa. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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template: default
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desc: Non object returned by [Symbol.asyncIterator]() - number
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info: |
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YieldExpression: yield * AssignmentExpression
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1. Let exprRef be the result of evaluating AssignmentExpression.
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2. Let value be ? GetValue(exprRef).
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3. Let generatorKind be ! GetGeneratorKind().
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4. Let iterator be ? GetIterator(value, generatorKind).
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...
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GetIterator ( obj [ , hint ] )
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...
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3. If hint is async,
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a. Set method to ? GetMethod(obj, @@asyncIterator).
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...
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6. Let iterator be ? Call(method, obj).
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7. If Type(iterator) is not Object, throw a TypeError exception.
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...
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features: [Symbol.iterator, Symbol.asyncIterator]
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flags: [async]
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---*/
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//- setup
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var obj = {
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get [Symbol.iterator]() {
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throw new Test262Error('it should not get Symbol.iterator');
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},
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[Symbol.asyncIterator]() {
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return 42;
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}
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};
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//- body
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yield* obj;
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throw new Test262Error('abrupt completion closes iter');
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//- assertions
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iter.next().then(() => {
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throw new Test262Error('Promise incorrectly fulfilled.');
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}, v => {
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assert.sameValue(v.constructor, TypeError, "TypeError");
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iter.next().then(({ done, value }) => {
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assert.sameValue(done, true, 'the iterator is completed');
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assert.sameValue(value, undefined, 'value is undefined');
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}).then($DONE, $DONE);
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}).catch($DONE);
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